Machine for making battery jars



J. W. BISHOP. 'MACHINE FOR MAKING BATTERY JARS.

APPLICATION FILED IIIAYIs, I92o.`

Patented Feb. 28, 1922.

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J. W. BISHOP. MACHINE FOR MARiNG BATTERY JARS.

- u AFPLICATON FILED MAY' i3, 1920. Lam/80. laend Feb.2s,1922.

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MACHINE FOB MAKING BATTERY JARS.

APPLxcAloN minimum. 1920.

1,407,980. Patented Feb. 28, 1922.

4 SHEETS-SHEET 3.

J. W, BISHOP.

MACHINE FOR MAKING BATEHY JARS- c APPUCATION FILED MAYS, ZO- l 107,980. Patented Feb, 28, 1923?` 4 SHEETS-SHEET 4- 5 nl .--r/

'position shown in Fig. 3.

,UNiTED'sTATEs PATENT oFFici-z.

JOSEPH W. BISHOP, 0F MUSKEGON, MICHIGAN, ASSIGNOR TO THE BRUNSWICK-1 BALKE-COLLENDER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 0F DELAWARE.

incasso.

lLMIACHIINT FOR MAKING BATTERY JARS.

Patented Feb. 28, 1922.

Application tiled May 13, 1920. Serial No. 380,982.

T0 all whom t wia/y concern:

Be it known that I, JOSEPH W. BISHOP, a citizen of the United States, residing at Muskegon, in the county ofMuskegon and State of-Michigan, have invented certain new and useful Improvements in Machines for Making attery Jars, of which the f ollowing is a specification.

This invention relates to machines of the type disclosed in my co-pending application Serial No. 317702, tiled August 15, 1919, for making hard rubber receptacles such as battery jars and the like and more particu-- lai'ly to means for folding and forming the base of such receptacles preliminary to vulcanization.

The primary object of the invention is to provide simple and/ efficient means for neatly, uniformly andcompactly folding the lower edges of the walls of the ar body inwardly and downwardly upon the bottom of the jar and sealing the contacting layers in their folded position ready for vulcanization.

A further object of the invention is to provide means for firmly supporting the side walls of the jar during the folding and forming operation so that warping or bulging is eliminated.

In the accompanying drawings I have illustratedl my invention as now embodied.

in a Working machine, and referring theret0-.-

Fig. 1 is a top plan View, partly in section, of the device, the parts heilig in their initial position.

Fig. 2 is a central vertical section, the parts being in the same position asin Fig 1. Fig. 3 is a top plan View, Apartly in 'secn tion, the parts being in their final position. Fig. i is a side elevation of the device, partly in section, the parts being 1n the Fig. 5 is an enlarged detailed front elevation of the folding device.

Fig. 6 is an enlarged detailed front elevation of the forming die.

Fig. 7 is a detail-perspective view of the folding members.

Fig. 8 is an enlarged perspective view of the base portion of a completed jar;

Fig. 9 is a perspective view of the folding head 31 with the folding members 37 .removed; and A Fig. 10 is a perspective View of the die.

is carried by the piston rod 20 to operate in cylinder and this piston rod is secured to the fopiiiing. die 21.

The forming die has oppositely disposed lugs 22 provided with openings 2a to receive andY slidably fit about the reduced end portions 26 of the rods 14. This forming die 21 is preferably provided with parallel strips on the operating face 28 thereof, and a pluralityof arms or projections 29 extend outwardly from the bodyl portion of the die to .engage andoperate the folding means.

The folding'head 31 is mounted upon the outer extremities of the rods 14 which pass through the lugs 32 on the head and are secured therein by the nuts 33. The body por tion of the folding head consists of a hollow frame 34 having a flaring mouth 35. Each of the side and end Walls of the frame is formed with an opening 36 therein and a folding member 37 is pivotally mounted in eachofsaid openings. These foldingmembers are preferably constructed with an inwardly projecting iiange 37 along the edge opposite to the pivotal connection to provide a subupon the main frame (not` stantially rectangular inner operating face I `folding head in the manner shown in Figs.

1 and 2. Air pressure is .nowadmitted be hind the piston 18 throughfthe pipe 42, causing the rrods 14 to advance' and move the folding head 31 and the forming die 21 toward the mandrel `with the parts of the head and :die continuing in the same relative'position as at the start of the operation. This Pressure is noiv admitted through the pipev 30 which still further advances the forming die, the foloing head remaining stationery. This relative movement ot the forming die ond the bend causes ne inclined ffice 29 of the projections to' conci with 'the outer oi. the folding members 37 and swing snch members inwardly, as shoifvn 'in Figs. :ind fl. .il the oldingmembers thus move, the operating ieces 37 disposed :it sul stenti-illy n rectangle to .each other thereof conse the tree bottom edge. oi the stock on the mnndrel to be folded inwardly and down rind preferably considerable pressure is cxcrted upon this folded edge in its depressed position 'to thoroughly seal the layers oi inbbf together. Simultaneouslywith the pres n fj inn-'ardly and downwardly or" 'the tree edge, the die tice 4G exerts n pressure on the bose ott the jnr :ind seuls the strip i7 thereon. The pressure ol the folding mem- 'lie 3'2" against the sides oi the jar during the ec ion oil the die foce 46 is iizirticulnrly beneficial :is it prevents bulgingot these sides which.otherwise would he liziblo lo occur. 4

lihen'thebottom of the jar has been formed in the manner desoibed, 'the pres'- sure in the pipes :ind 42 is exhausted ond oir admitted in front oi` the piston lll sthrongli the 'iressure pipe 4S. This causes vhe r11' ifito move rearwardly, and the ,`.1 PQ/,f-lrfl. lq-L'. 'l l f.-r

iin i.) i ivi nime tm. :mining me loin aiding hond so that the parts resume initial position, rllhc pir is. then re niovcd from the machine sind placedv in the vulcnjinzci:

lilfhile the operation of the device has been.

solely dcscribei'l in connection with the inani'i'iiicture of buttery jfn. it will be` readily understood that it is adaptable for many oii n' i'iscsnnd the clnilns vshould be so construed.

l. un aware that changes in the 'form and pro'iortion and arrnngemento'f ports oi` my in-vcntimi maybe made Without del erting from the spirit or smzricinnl the advantages thercoiand l therefore reserve the make all such changes as 'fairly the scope ofthe following claims.

l claim:

l. ln :if inzichine or" tin` class described, the combination of n. mandrel, :i folding heed, nil "'"ddinnj n'iezins carried by said head :ind :dcslicd o fold into 2o-operative right to toll `within relation to son 2. ln n mocht# Clie coznbnnitwn oi deseri bed, 'e 'folding lly :igziiinst the bottom of the jnr,

with the corresponding' head, folding means, hingedly mounted in said heed, and means for actuating seid folding means.

3. In a machine of the class described, the combination of e. mandrel, a folding head, folding members pivotally mounted in seid bend, and e forming die coacting With said heed to :ictuate .said folding members.y

4l. In n machine oi the clnss described,- the combination of e mandrel, a folding lien'd, folding members movebly mounted on said heed, and e 'forming die actuating said folding members by relative movement of said head and said die.

5. In a machine of the class described, o mandrel, and a. folding heed having folding,r means movable later-olly of said head.

6. ln a machine of the classvdescribed, n mandrel, n folding head, and a plurality of folding` members mounted in and movable laterally relative to said head.V

k7. ln a machine of the class described, n mnmlrel, n 'folding` bend, :L forming' die, und n lilurnlity oi folding members pivotally mounted on the head ond movable liiternlly olf said head by relative movement of the head and die.

8. In n machine of theclnss described, a mandrel^ n, folding,r head, folding means hingedly mounted on said heed, forming die, and means on said forming die for swinging said' folding :members inwardly on solid head. .j-

9.- ln 'n machine of the classldescnibeda folding head. n plurality of foldingnlembers hingedly mounted on said head, :i forming die, :1nd n plurality ot projections on-,said y die meeting with the corresponding`-fold i ngmeinbers on seid head to move said members relative to scid mandrel.;

10. ln n. miichineof the class described, n folding head, e plurality` of folding members hingedly mounted on said head, n formingr die movable relative to said head, a plurality ot projections on n folding' members on said hond to move seid members toward said mandrel dnrinon portion of the travel ot said die, and means for returning said members on the completion. of the folding op- 115 ciprocnble torinii'igrv die, means 4for advance `12.0

ing' said folding head into its operntiveposif tion relative to said mandrel, means for mov'- ing' .smid die relative to said head When. said hond is in ,said operative position, and/'means on seid die for engagingsindv members -dn'r- 12r5' ingsuch relntivc motion ot the die und head to n'iove said folding; members toward said mandrel.. `f

l2. ln o 'machine of the class described, a

nnindrel, and n folding head comprisinga V130 said die coacting '110 meneer;

hollow frame provided with openings in the side Walls thereof, and a folding member hingedly mounted in each of said openings and movable laterally of said frame into the interior thereof.

15. ln a machine of `the class described, a mandrel, and a folding head comprising fixed corner members rigidly connected and folding members pivotally mounted be tween each adjacent pair of corner members and movable :on their pivots Vtoward yand from the axis of said head'.

16. In a machine of the class described, a mandrel, and a folding head disposed opposite to said mandrel comprising a frame, and folding members hingedly mounted in said iframe each having substantially rectangularly disposed operating faces.

17. ln a machine of the class described, a mandrel, and a folding 'head comprising a frame, and plurality of plates hingedly mounted in said frame substantially on their lower edges,j-eae`h of said plates having'a flange extending along the upper edge there of and projecting inwardly therefrom at substantially a right angle to the operating face of the plate.

18. In a machine of the class described, a mandrel, and a folding head disposed 0pposite thereto comprising' a frame, and folding members hingedly mounted in said frame to engage the side walls andthe bottom of the jar.

19. ln a machine of the class described, a

mandrel having a wrapper applied thereto with one edge thereof projecting beyond the end of the mandrel, a folding head disposedl opposite to said mandrel, and hingedly mounted folding members `each having/a laterally projecting flange thereon to engage the projecting edge of the wrapper and press said edge inwardly and downwardly upon the end vof the mandrel as said members.

20. ln a machine of the class described, a mandrel having a wrapper applied thereto with one edge thereof projecting beyond the end of the mandrel, a folding head disposed opposite to said mandrel, and hingedljT mounted folding members movableA toward said mandrel to fold said edge inwardly and downwardly upon the end of said mandrel and to press said wrapper against the side wallsof said mandrel during such folding operation.

JOSEPH W. BISHOP. 

